What a pain.
I went over to the flat after texting and calling, and was greeted by a girl who attempted to didn't explicitly indicate she wasn't Paola.
When I asked for Paola, she went to get her friend who, again, was not Paola.
I think they were hoping that offering girls at either end of the fat spectrum would cover all bases.
I said I'd come back another time and headed off.
Warning - double attempted bait and switch!